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Intangible Assets - Estimated Future Amortization Expense Related to Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Finite Lived Intangible Assets Future Amortization Expense [Abstract]    
2021 $ 4,119  
2022 3,494  
2023 3,340  
2024 3,245  
2025 3,031  
Thereafter 6,241  
Net Value $ 23,470 $ 27,821